ADC QUIZ

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By BHARATH SURESH

​ADC QUIZ ON ERROR CODES

Multiple Choice

1. The main goal of source coding is to ?

• Increase data redundancy and slow down transmission.
• Simplify data formats without considering efficiency.
• Enhance data quality and improve error rates.
• Reduce data redundancy and optimize storage/transmission.

Multiple Choice

2. Huffman coding is a type of ?

• lossy data compression algorithm
• encryption method
• data encoding technique
• lossless data compression algorithm

Multiple Choice

3. Shannon-fano coding is based on ?

• Length of the data stream
• Order of symbols in the message
• Probability and frequency of symbols
• Type of encoding used

Multiple Choice

4. A good source code must be?

• Difficult to read and understand.
• Only functional with no comments.
• Highly complex and convoluted.
• Clear, maintainable, and well-documented.

Multiple Choice

5. The efficiency of source code is defined as?

• The total number of lines in the code.
• The measure of performance and resource usage of the code.
• The amount of comments in the code.
• The programming language used for the code.

Multiple Choice

6. Error detection is mainly achieved by using?

• Parity bits and checksums
• Checksums and error-correcting codes
• Data compression algorithms
• Network routing protocols

Multiple Choice

7. For a binary source with symbols "0,1" having equal probability, the entropy is ?

• 0.5 bits
• 2 bits
• 1.5 bits
• 1 bit

Multiple Choice

8. The code rate(R) of a block code is?

• R = n/k
• R = k + n
• R = k - n
• R = k/n

Multiple Choice

9. A hamming code with minimum distance is 3 can?

• detect 0 errors and correct 2 errors
• detect 2 errors and correct 1 error
• detect 3 errors and correct 0 errors
• detect 1 error and correct 2 errors

Multiple Choice

10. If the minimum hamming distance between codewords is 5, the code can detect upto?

• 6
• 2
• 4
• 3

Multiple Choice

11. Cyclic redundancy check (CRC) is mainly used for?

• Data compression in file storage.
• Encryption of sensitive information.
• Error detection in data transmission and storage.
• Data formatting for transmission.

Multiple Choice

12. Convolutional codes are preferred in?

• signal amplification
• image processing
• data storage
• communication systems

Multiple Choice

13. Shannon's first theorem deals with?

• Source Coding.

• The encryption methods used in data transmission.
• The types of modulation techniques available.
• The physical distance limitations of a channel.

Multiple Choice

14. Entropy of a binary source with probabilities 0.1,0.9 is approxmiately ?

• 0.1 bits
• 1.0 bits
• 0.3 bits
• 0.469 bits

Multiple Choice

15. The main limitation of shannon-fano coding is?

• It may not always produce optimal codes

• It requires more bits for encoding than Huffman coding.
• It can only encode binary symbols.
• It is not suitable for real-time data transmission.